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dshickle



Member Since: 09 Oct 2007
Location: Epsom
Posts: 36

2007 Defender 110 Puma 2.4 CSW Galway Green
Dual Battery - Split charge system
Hi All,

I was wondering if anyone has any views or installed a dual battery system in a defender.

I know it has been done many times - and doing a search I find info ranging from DIY solutions to pretty expensive kits.

Since this is the forum I use I was looking for input here.

many thanks for any input

David Disovery 3 TDV6 SE
Defender 90 XS 2.4
Defender 110 S D250 (MY22)
Post #1696 25th Mar 2008 5:37pm
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red Defender



Member Since: 11 Feb 2008
Location: Cornwall
Posts: 76

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Bonatti Grey
I went to Devon 4x4 and had the Genisis system fitted, they did the work and made it very worthwhile letting them do the work by discounting the parts. They did a great job and the system works very well, giving battery voltage of both batteries on an LCD display.
In my 90 I did a self fit of the Luna system which also works well but I dont really like the display of battery condition, being a strip of leds going from green though orange to red.
Hope this is of some interest. Thumbs Up Whats broken now ?
Post #1698 25th Mar 2008 8:40pm
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ti-fat-man



Member Since: 08 Feb 2009
Location: Bedford
Posts: 517

United Kingdom 2011 Defender 110 Puma 2.4 USW Alpine White
Hiya folks,
normally a lurker here Embarassed , but might as well get involved as well.
Q: for RD.
just doing a twin battery conversion on my puma 90. going for the devon battery tray, what batteries did you fit?
i'm thinking about odessey 1500's and considering the luna management system.
cheers alan.
Post #7029 8th Feb 2009 8:40pm
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AndrewS



Member Since: 10 Apr 2007
Location: Hereford
Posts: 3707

United Kingdom 2013 Defender 130 Puma 2.2 SW Rimini Red
10forcash on the D3 site came to my place and fitted my system. PM him and get a quote Thumbs Up
Post #7056 9th Feb 2009 2:27pm
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red Defender



Member Since: 11 Feb 2008
Location: Cornwall
Posts: 76

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Bonatti Grey
Mine is the Devon tray, and I have the 1500,s as you mention. Its a tight fit but they do go in. Whats broken now ?
Post #7063 9th Feb 2009 5:24pm
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ti-fat-man



Member Since: 08 Feb 2009
Location: Bedford
Posts: 517

United Kingdom 2011 Defender 110 Puma 2.4 USW Alpine White
Cheers RD,
Yeap that's confirmed my choice ( Sheep )
won't mind a pic of the install, when you got any time
thanks al Thumbs Up
Post #7064 9th Feb 2009 5:41pm
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red Defender



Member Since: 11 Feb 2008
Location: Cornwall
Posts: 76

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Bonatti Grey
If you go to my gallery theres a picture of the twin battery instalation. The picture is taken from the drivers side and the batteries are pulled towards the drivers side to access the negitive connectors. When the batteries are pushed into the tray the connectors are under the seat rail and basically in accessible. Hope this helps.



Just found out how to post a picture Thumbs Up Whats broken now ?
Post #7066 9th Feb 2009 6:09pm
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ti-fat-man



Member Since: 08 Feb 2009
Location: Bedford
Posts: 517

United Kingdom 2011 Defender 110 Puma 2.4 USW Alpine White
Hiya RD,

i'm just wiring my twin battery conversion. using two odyessy pc1500's into a devon 4x4 tray.
vehicle is a 57 puma
i'm wondering how you wired the main feed from the alternator to the main (starter) battery. did you use the fuse block with the 500A fuse in the plastic block, from the original OEM battery. or did you dispense with it? or wire it via a fuse from another manufactuer? the stock fuse doesn't seem to fit from the pos+ post and hang over the side of the new battery Confused
can you enlighten me..........confused.com Very Happy
cheers al.
Post #7728 24th Feb 2009 8:17pm
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Sonic3d



Member Since: 28 Jan 2008
Location: Ross on Wye
Posts: 1505

United Kingdom 2010 Defender 110 Puma 2.4 XS DCPU Stornoway Grey
Im also fitting the Devon tray and 2 Odyssey 1500`s but will be using the BEP Marine 300amp voltage sensing relay with a switch on the dash to link the batteries together Thumbs Up
Post #7729 24th Feb 2009 8:26pm
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red Defender



Member Since: 11 Feb 2008
Location: Cornwall
Posts: 76

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Bonatti Grey
I used the fused connector as origional. Take the plastic cover off and bring the cable in from the other side otherwise it wont fit. Whats broken now ?
Post #7741 25th Feb 2009 9:39am
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ti-fat-man



Member Since: 08 Feb 2009
Location: Bedford
Posts: 517

United Kingdom 2011 Defender 110 Puma 2.4 USW Alpine White
RD..........cool
that's the wonder of interweb forums, solutions to my problems Very Happy
yeah hang that OME fuse way over the other side, just fits.
so good if fact that i've ordered another from dealer, to mount on the second battery.
going to run a smaller 'mega' fuse in that carriage, on the feed-out from the solinoid.
the OME pos+ clamp also has the benifit of the two mounts for the secondary supplies.
cheers, will post a pic of mine when completed.
cheers al.
Post #7764 25th Feb 2009 9:01pm
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ti-fat-man



Member Since: 08 Feb 2009
Location: Bedford
Posts: 517

United Kingdom 2011 Defender 110 Puma 2.4 USW Alpine White
Ok folks, those that have done it..........what's the best/neatest way to run a dual battery monitor lead (in my case a national luna) from the battery box to the dash.

i can consider drilling a hole in the battery box wall to get the lead under the carpet...........not my prefered option.
or going out of an original grommet and somehow coming up through the engine bay, back through the dash.
i've seen a cable exit out through a small hole drilled in a blank switch, i thought that was neat.

any suggestions would be appriciated Smile
Post #8275 10th Mar 2009 1:10pm
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